Hi,
I’m writing a small clang tool in the clang-tools-extra directory by using the monorepo. My CMakeList.txt files is as follows:
set(LLVM_LINK_COMPONENTS Support)
add_clang_executable(loop-convert
LoopConvert.cpp
)
target_link_libraries(loop-convert
PRIVATE
clang
clangAST
clangASTMatchers
clangBasic
clangFrontend
clangTooling
)
When I ran the build command, I got a linker error complaining that functions in lib/libclang.so cannot be found:
$ ninja loop-convert
[1/1] Linking CXX executable bin/loop-convert
FAILED: : && /usr/bin/clang++-6.0 -fPIC -fvisibility-inlines-hidden -Werror=date-time -Werror=unguarded-availability-new -std=c++11 -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long -Wcovered-switch-default -Wno-noexcept-type -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wstring-conversion -fdiagnostics-color -fno-common -Woverloaded-virtual -Wno-nested-anon-types -g -fuse-ld=lld-6.0 -Wl,--color-diagnostics -Wl,-allow-shlib-undefined tools/clang/tools/extra/loop-convert/CMakeFiles/loop-convert.dir/LoopConvert.cpp.o -o bin/loop-convert lib/libLLVMSupport.so.8svn -lpthread lib/libclangAST.so.8svn lib/libclangASTMatchers.so.8svn lib/libclangBasic.so.8svn lib/libclangFrontend.so.8svn lib/libclangTooling.so.8svn -Wl,-rpath,"\$ORIGIN/../lib" && :
/usr/bin/ld.lld-6.0: error: undefined symbol: clang_getCString
>>> referenced by LoopConvert.cpp:7 (/home/lu/work/git-repos/llvm-mono/llvm-project/clang-tools-extra/loop-convert/LoopConvert.cpp:7)
>>> tools/clang/tools/extra/loop-convert/CMakeFiles/loop-convert.dir/LoopConvert.cpp.o:(operator<<(std::ostream&, CXString const&))
...
It is clear that the lib/libclang.so.8svn is missing from the command line invoked by ninja. How can I add it into the build command? The “clang” line in the CMakeList.txt file doesn’t work.
Thanks.